Secure Zipper Closure: Your valuable cards are protected by a heavy-duty zipper closure, ensuring they stay in pristine condition during transport or storage. 20 High-Quality Pages: This portfolio boasts 20 double-sided pages, each featuring crystal-clear pockets to display and protect up to 360 standard-sized cards in 9 pocket format. Works for single or double-sleeved card. Premium Material: Crafted from top-quality materials, this Z-Folio LX is built to last. The durable black leatherette cover offers a professional look and is easy to clean. Side-Loading Pockets: Slide your cards effortlessly into the acid-free side-loading pockets which are designed to fit snugly and won't slip out. Lay-Flat Design: The album's lay-flat design allows for easy viewing and access to your collection during gameplay or trading sessions.